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GRP A3
– Pitch Shifting

Lead line with 3 strong sawtooth VCOs and intensive use of the controller keyboard’s pitch bender. The A3 features MIDI, of course.

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GRP A3
– Triple Sequence

Three pulse sound tracks mixed and rendered. The soft, yet strong, round GRP sound is just wonderful. You need good headphones or powerful speakers in order to realize the sonic depth in this soundfile.

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GRP A3
– Mix

Although the A3 is an early GRP product, hardware and sound quality are definitely amazing. Built in 2007, this is a one-off. Mix soundfile: GRP A3 and Korg MiniPops 120 drums.

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GRP A3
– Demo 2

This example demonstrates the tonal flexibility of the A3 filter. Looped sequence with varying frequency, resonance and envelope amount settings.

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GRP A3
– Demo 1

All GRP A3: bass sound, layered notes with filter sweeps, LFO effects, ring modulation, single “ping” tones.

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GRP A3
– PWM Sequence

Two samples in a row. PWM sequence in mid audio range. Excellent envelopes, as you can hear.

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GRP A3
– PWM Bass

Gorgeous bass with pulse width modulation. 3 VCOs, slow filter sweep. Pure discrete analog sound. Nothing else.

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GRP A3
– 24dB VCF

3 VCOs and a plain 24dB low pass filter. Very slow filter sweep – analog sound aesthetics from its most beautiful side.